Problems
Frogger#1221
Medium · Graphs
"Bubble Gum, Bubble Gum..."#1222
Very easy · Brute force
Games R Us#1223
Very easy · Sorting · Implementation · Data Structures
Cover Up#1224
Hard · Probabilities
Black Box#1225
Very easy · Binary Search · Data Structures
Foreign Exchange#1226
Very easy · Graphs · Brute force
Andy's First Dictionary#1227
Very easy · Implementation
Add All#1228
Very easy · Greedy algorithms
GCD Extreme II#1229
Very easy · Number theory
GCD Super-Extreme#1230
Easy · Number theory
Lucky Controller#1231
Medium · Math · Implementation
Jumping Robot#1232
Medium · Dynamic programming
Collisions#1233
Very easy · Sorting · Greedy algorithms
Pairs#1234
Easy · Greedy algorithms · Sorting
Embassy#1235
Easy · Greedy algorithms
Dictionary of Banned Ingredients#1236
Medium · Brute force · Strings
Greatest Product#1237
Very easy · Math · Dynamic programming
Fractal Cake#1238
Very easy · Implementation
Hexaroman Numbers#1239
Very easy · Implementation
Beam in Tunnel#1240
Medium · Dynamic programming
Key#1241
Medium · Prime factorization
Game on Chessboard#1242
Very hard · Games
Least Common Multiple#1243
Very easy · Number theory
GCD and LCM#1244
Very easy · Number theory
Sunny Island#1245
Medium · Number theory